Please use this identifier to cite or link to this item: http://hdl.handle.net/11400/3499
Title: Comparing fogging strategies for pig rearing using simulations to determine apparent heat-stress indices
Authors: Παναγάκης, Παναγιώτης
Αξαόπουλος, Πέτρος Ι.
Item type: Journal article
Keywords: Pig;Heat-stress indices;Γουρούνι;Θερμική καταπόνηση
Subjects: Agriculture
Livestock
Γεωργία
Κτηνοτροφία
Issue Date: 7-Jan-2015
2008
Date of availability: 7-Jan-2015
Publisher: Elsevier Science Ltd
Abstract: Strategies to reduce the apparent heat-stress indices inside a growing pig building were compared. Two fogging strategies were studied, fogging with the necessary water evaporating to give the same: (i) duration of heat-stress, ‘FDuration’, and (ii) intensity of heat-stress, ‘FIntensity’, as when using evaporative pads, ‘EPads’. For the whole 5-month period (May–September) under Greek summer conditions strategy ‘FIntensity’ was significantly better than strategy ‘FDuration’ in terms of heat-stress duration (Po0.05; reduction 45.1%) and heat-stress intensity (Po0.01; reduction 70.7%). Also, during the hottest day (Julian 176) it resulted in: (i) a lower daily average inside temperature (28.5 vs. 31.8 1C; reduction 10.4%), (ii) a smaller daily inside dry-bulb temperature variation (8.7 vs. 10.3 1C; reduction 15.5%) and (iii) a higher reduction of peak outside temperature (36.8 1C at 14:00 h), namely 2.9 vs. 0.2 1C, respectively. For both strategies and heat-stress indices July was the most stressful month and May the mildest. In areas characterised by high outside temperatures and scarce water resources strategy ‘FIntensity’ should be implemented with caution as larger water quantities, in comparison to strategy ‘FDuration’, need to evaporate.
Language: English
Citation: Panagakis, P and Axaopoulos, P. (January 2008). Comparing fogging strategies for pig rearing using simulations to determine apparent heat-stress indices. Biosystems engineering. 99 (1). Elsevier Science Ltd. pp. 112-118. Anailable from: http://www.sciencedirect.com [Accessed 26/11/2007]
Journal: Biosystems engineering
Type of Journal: With a review process (peer review)
Access scheme: Publicly accessible
License: Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες
URI: http://hdl.handle.net/11400/3499
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